<configuration>
    <property>
        <name>fs.defaultFS</name>
        <value>hdfs://{{ hdfs_cluster_name }}</value>
    </property>
    <property>
        <name>io.file.buffer.size</name>
        <value>131072</value>
        <description>默认4KB，调整为128KB</description>
    </property>
    <property>
        <name>hadoop.tmp.dir</name>
        <value>{{ hadoop_install_path }}/hadoop/tmp</value>
    </property>
    <property>
        <name>ha.zookeeper.quorum</name>
        <value>{{ zookeeper_quorum }}</value>
    </property>
    <property>
        <name>fs.trash.interval</name>
        <value>1440</value>
    </property>
    <property>
        <name>fs.permissions.umask-mode</name>
        <value>007</value>
    </property>

<!-- 调优 start -->
    <property>
        <name>ipc.8020.callqueue.impl</name>
        <value>org.apache.hadoop.ipc.FairCallQueue</value>
    </property>
    <property>
    　　<name>ipc.8020.backoff.enable</name>
    　　<value>true</value>
    </property>
<!-- 调优 end -->
</configuration>
